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Finding the Third Proportional to 17,938,656 and 38,269,080

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Solution

The third proportional to 17,938,656 and 38,269,080 is: 81,640,591.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,938,656 : 38,269,080 = 38,269,080 : x
  2. Step 2: Convert to fraction form
    17,938,656/38,269,080 = 38,269,080/x
  3. Step 3: Cross multiply
    17,938,656x = 38,269,080 × 38,269,080
  4. Step 4: Simplify right side
    17,938,656x = 1,464,522,484,046,400
  5. Step 5: Solve for x
    x = 1,464,522,484,046,400/17,938,656
  6. Step 6: Final answer
    x = 81,640,591.36

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.